Re: [PATCH net-next] netpoll: Fix race condition in netpoll_owner_active

patchwork-bot+netdevbpf
2024-05-01T02:10:32Z

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Mon, 29 Apr 2024 03:04:33 -0700 you wrote:
> KCSAN detected a race condition in netpoll:
>
> BUG: KCSAN: data-race in net_rx_action / netpoll_send_skb
> write (marked) to 0xffff8881164168b0 of 4 bytes by interrupt on cpu 10:
> net_rx_action (./include/linux/netpoll.h:90 net/core/dev.c:6712 net/core/dev.c:6822)
> <snip>
> read to 0xffff8881164168b0 of 4 bytes by task 1 on cpu 2:
> netpoll_send_skb (net/core/netpoll.c:319 net/core/netpoll.c:345 net/core/netpoll.c:393)
> netpoll_send_udp (net/core/netpoll.c:?)
> <snip>
> value changed: 0x0000000a -> 0xffffffff
>
> [...]

Here is the summary with links:
- [net-next] netpoll: Fix race condition in netpoll_owner_active
https://git.kernel.org/netdev/net-next/c/c2e6a872bde9

You are awesome, thank you!
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